import {createStore,applyMiddleware,combineReducers
} from "redux"
import thunk from 'redux-thunk'

import countReducer from './reducers/countReducer'
import movieReducer from './reducers/movieReducer'

//异步处理中间件
//当我们要进行异步action，action是一个函数，我们dispacth的函数就会提交到中间件
//中间件帮我们执行函数，一般函数中会有一个dispatch再次派发到store中
console.log('store调用了');

//使用redux提供的combineReducers方法 合并多个reducer
const allReducer=combineReducers({
    movie:movieReducer,
    count:countReducer
})

//创建store 并提供对应的reducer(第二个参数是用来调用中间件)
const store =createStore(allReducer,applyMiddleware(thunk))

export default store;